Flame arresters are passive devices with no moving parts. They prevent the propagation of flame from the exposed side of the unit to the protected side by the use of wound crimped metal ribbon type flame cell element.
How does a flame arrestor work?
A flame arrester functions by absorbing the heat from a flame front traveling at subsonic velocities, thus dropping the burning gas/air mixture below its auto-ignition temperature; consequently, the flame cannot survive. The heat is absorbed through channels (passages) designed into an element.
What is the difference between spark arrestor and flame arrestor?
I am by no means an expert, but in my limited understanding, a flame arrestor is engineered to quench a flame by absorbing heat, whereas a spark arrestor is intended to prevent solid particles, glowing or otherwise, from exiting a given volume.
What is the difference between a flame arrestor and a detonation arrestor?
In short, the deflagration Flame Arrester is designed to stop the initial phase of the explosion and is shorter and lighter than the unstable detonation arrestor, but the Deflagration Flame Arrester has restrictions on its placement within the pipework regarding distance from the source of ignition.
Why do you need a flame arrestor?
Flame arresters are typically used wherever there is the potential for an explosion arising from flammable gas or vapour being mixed with air. Accidental ignition of a flammable mixture will result in a flame that will travel through the unburnt mixture until the fuel is consumed by the reaction.
When should a flame arrestor be installed?
1. Every point of discharge of methane from a pipeline into the atmosphere or into a compressor or pump should be fitted with a flame arrestor. 2. Each device should be securely anchored in an accurate seating so that it cannot be displaced by an explosion and so that flame cannot propagate past the seating.
What is a flame arrestor and where can it be found?
Flame arresters are passive, mechanical devices installed on a storage tank nozzle or in a vapor piping system. Stopping the flame protects the storage tank, or the equipment located in the piping system, from the catastrophic damage that may result from an uncontrolled ignition.
What is the function of flame arrestor?
By definition, a flame arrester is a passive device that allows gas to pass through it but stops the propagation of a flame.
What is the other term for flame arrestor?
A flame arrester may also be known as a deflagration arrester or a flame trap.
What is a flame arrestor on a tank?
Flame arresters are passive, mechanical devices installed on a storage tank nozzle or in a vapor piping system. Its primary function is to allow gases to pass through during normal operating conditions, but stop a flame in order to prevent an explosion or fire propagation under emergency situations.
Where do you put a flame arrestor?
Flame arrester location in the process End-of-line flame arresters (Figure 5a) are located directly on a vessel or tank vent nozzle, or on the end of a vent line from the vent nozzle.